Air-Operated Diaphragm Pump

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210✠ 206◆†✠ 1 207✠ 210✠ 201 206◆†✠ 1 217✠ 219✠ DataTrak Models with Runaway 218✠ Protection air inlet 1 204◆ 1 203◆ 208◆† 1 2 202◆ 1 208◆† 1 2 207✠ 206◆†✠ 1 210✠ 211◆ 1 212◆ 1 2 Apply lithium-based grease. U-cup lips must face piston. 205◆ 209◆† ti14026a FIG. 4. <strong>Air</strong> valve assembly 4. Grease both ends of the piston (202) and install it in the housing (201), with the flat side toward the cup (212). Be careful not to tear u-cups (208) when sliding piston into housing. 5. Standard or Pulse Count models (no runaway protection solenoid): Grease new o-rings (206) and install on the end caps (207). Install the end caps into the housing. DataTrak models (with runaway protection solenoid): Orient the air valve so the air inlet faces forward. Grease and install new o-ring (206) on right-side end cap (207). Grease and install new o-ring (206) and the solenoid release button (218) and o-ring (219) on left-side end cap (217). Install the end caps into the housing. 6. Install a retaining ring (210) on each end to hold end caps in place. 7. Grease and install the detent assembly (203) into the piston. Install the spring (211). Grease the side of the air valve cup (212) that will contact the valve plate (205). Install the air valve cup (212). Align the small round magnet with the air inlet. 8. Install the valve plate (205). Align the small hole in the plate with the air inlet. Tighten the screws (209) to hold it in place. 205 small hole 212 magnet ti14097a FIG. 5. <strong>Air</strong> valve cup and plate installation 10 859.0089
Check Valve Repair 1 2 Torque to 100 in-lb (11.3 N•m). See Torque Instructions, page 15. Arrow (A) must point toward outlet manifold. NOTE: Kits are available for new check valve balls and seats in a range of materials. See page 24 to order kits in the material(s) desired. An o-ring kit and fastener kits also are available. 3 Not used on some models. Aluminum pump shown 6 1 NOTE: To ensure proper seating of the check balls, always replace the seats when replacing the balls. Also, on models with manifold o-rings, replace the o-rings. 4 Disassembly 1. Follow the Pressure Relief Procedure on page 8. Disconnect all hoses. 11 2. Remove the pump from its mounting. 12 3 3. Use a 10 mm socket wrench to remove the outlet manifold fasteners (6). See FIG. 6. NOTE: For plastic pumps (VA25C, VA25P, and VA25F), use hand tools only until thread-locking adhesive patch releases. 4. Remove the o-rings (12, not used on some models), seats (10), and balls (11). 5. Turn the pump over and remove the inlet manifold. Remove the o-rings (12, not used on some models), seats (10), and balls (11). 10 12 3 3 A 2 7 Reassembly 1. Clean all parts and inspect for wear or damage. Replace parts as needed. 2. Reassemble in the reverse order, following all notes in FIG. 6. Be sure the ball checks (10-12) and manifolds (4, 5) are assembled exactly as shown. The arrows (A) on the fluid covers must point toward the outlet manifold (4). 11 12 10 12 3 3 5 1 6 FIG. 6. Ball check valve assembly ti14098a 859.0089 11
Page 1 and 2: Repair/Parts VERDERAIR VA 25 Air-Op
Page 3 and 4: PART NO. CONFIGURATION NO. DATE COD
Page 5 and 6: WARNING PRESSURIZED EQUIPMENT HAZAR
Page 7 and 8: Problem Cause Solution Exhaust air
Page 9: Replace Seals or Rebuild Air Valve
Page 13 and 14: 104* 2 14 1 15 14 1 303 5 4 15 4 13
Page 15 and 16: 7. To ensure proper seating and ext
Page 17 and 18: Parts/Kits Quick Reference Use this
Page 19 and 20: Kit 859.0000, Center Section Rebuil
Page 21 and 22: Air Valve End Cap Kits (✠) Standa
Page 23 and 24: Outlet Manifolds Aluminum Kits incl
Page 25 and 26: Kit Parts Qty. 859.0135 (PP, FK, FK
Page 27 and 28: Diaphragms (continued) Pump Size an
Page 29 and 30: 859.0089 29
Page 31 and 32: Operating Temperature Range NOTICE
Page 33 and 34: Customer Services/Guarantee CUSTOME

Air-Operated Diaphragm Pump

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